How Billions Catfish Are Raised and Processed | Inside the World of Modern Catfish Farming

Aquaculture
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Did you know that some farmed catfish can grow over one meter long and weigh dozens of kilograms?
Catfish farming has become a booming industry, especially in Asia, Europe, and the U.S.,
thanks to its fast growth, high survival rate, and delicious, protein-rich meat. These fish thrive
in ponds and controlled systems, making them ideal for large-scale production.
Now, the Netherlands, Germany, Hungary, and Poland are the leaders in European catfish farming.
For example, the Netherlands produces over 12,000-15,000 tons per year, almost all African
catfish, using RAS, recirculating aquaculture systems. Why is catfish so popular in Europe?
Because it's efficient to grow. African catfish, with just 1.2 kg of feed, you can get 1 kg of
fish much better than many other farmed fish. It also grows fast. In 6-8 months, African catfish
can reach 1.2-1.5 kg, which is perfect for market size. Now, once the catfish are comfortably
growing, feeding becomes the most important step. Most farms use high-quality industrial feed,
specially formulated with the right balance of protein, fat, and vitamins.
And here's where modern farms get interesting. Many large-scale farms use automatic feeding
systems. Huge trucks loaded with catfish feed drive around the ponds or tanks,
spraying the pellets evenly across the water surface. This method saves time,
ensures all fish get enough food, and reduces waste. When the catfish reach the desired size,
farmers use a large crane equipped with a big, strong net to carefully lift the fish
out of the ponds. This method is chosen because catfish can get quite large and heavy.
Some European catfish can grow over a meter long and weigh dozens of kilograms, so the crane allows
for safe and efficient handling without stressing or injuring the fish. One interesting fact.
Farmers often harvest early in the morning or late in the afternoon. Why? Because cooler
temperatures reduce stress, keeping the fish calm, which helps maintain better meat quality.
Inside the factory, it's a mix of precision and speed. Conveyor belts carry the fish to
automated gutting and filleting machines. A skilled worker can manually fillet up to 200
fish per hour, but modern plants with automated lines handle thousands every hour. The fillets
are trimmed to remove even the tiniest bones because European consumers demand near 100 percent
boneless fillets. Usually, trucks equipped with these water tanks or refrigerated containers
carry the catfish to the processing plant. Modern catfish plants use electric or percussive stunning
systems, which knock the fish out instantly. Catfish is one of the most beloved freshwater
fish in the world, and for good reason. It's crispy on the outside, tender and juicy on the
inside when fried. In the southern United States, for example, it's coated in seasoned cornmeal
and deep fried until golden brown, served with hush puppies or coleslaw. In Asia, especially
Vietnam and Thailand, catfish is often marinated with garlic, lemongrass, or chili before frying,
giving it a rich, fragrant flavor that pairs perfectly with rice. Did you know that top
quality sea cucumbers can sell for over $3,000 per kilo when dried? Sea cucumbers, one of the
ocean's most valuable treasures. In this video, we'll take you inside the fascinating world of
sea cucumber farming, how they're raised, carefully harvested, and prepared for the global market.
In many parts of Asia and the Pacific, divers are still the best harvesters of sea cucumbers.
Wearing masks and air tanks, they search the seabed for these soft-bodied animals,
which often lie half buried in sand or hide among rocks and corals. Hand picking is the preferred
method because it keeps the animals alive and undamaged, crucial for high-value species.
Sea cucumbers crawl slowly on the seafloor, but catching them is tricky. If stressed,
they can spit out sticky threads or organs, losing value and taking months to recover.
So divers handle them very carefully. Right after harvesting, the sea cucumbers are placed
in seawater tanks to keep them fresh. They must reach the factory within six hours.
If delayed, sea cucumbers can lose up to 20% of their weight due to stress and self-digestion,
reducing their market value. Breeding usually takes place around the full moon.
Sea cucumbers are placed in clean spawning tanks. Within an hour, males release sperm,
and females lay millions of eggs. After spawning, the adults are removed,
and gentle aeration keeps the eggs suspended. By the next day, fertilized eggs develop into
embryos. The eggs are then moved to clean tanks, about 300 eggs per liter. They hatch in 16 hours,
and start feeding after 36 hours. The larvae pass through swimming and transitional stages
before settling at the bottom as juveniles. After 40 days, juvenile sea cucumbers are ready
for farming. Freshly harvested sea cucumbers arrive at the processing plant in chilled containers.
Once inside the factory, the first step is thorough cleaning. Workers rinse the sea
cucumbers in clean running water to remove any external debris. Next, skilled workers make a
small incision along the belly to remove the internal organs. After gutting, the sea cucumbers
are rinsed again to ensure they're completely clean before cooking. Boiling is one of the most
critical steps. Sea cucumbers are placed in large stainless steel boiling tanks filled with seawater
or salted water. After boiling, sea cucumbers are prepared for drying. Proper drying reduces
moisture content to below 15%, making the sea cucumbers light, hard, and ideal for long storage.
Sea cucumbers may not look appetizing at first glance, but for seafood lovers, they're a true
delicacy. Their texture is soft, slightly chewy, and gelatinous, perfect for soaking up rich broths
and sauces. In high-end Chinese cuisine, they're often braised with abalone or cooked in thick,
savory soups. Have you ever tried this? Maine lobster isn't just delicious, it's legendary.
Caught wild by over 4,000 licensed lobstermen along Maine's rugged coastline, these lobsters
grow slowly in the cold Atlantic, which gives their meat that famously sweet and tender flavor.
Sweet, juicy, and oh so satisfying, Maine lobster is a seafood superstar. Maine lobster fishing isn't
just work, it's a tradition passed down through local families along the coast of New England.
Each day, fishermen leave early in the morning in small boats to head out into the chilly Atlantic
Ocean. They catch lobsters using special baited traps called pots, which sit on the ocean floor
and are marked by colorful floating buoys. These traps are designed to let baby lobsters and other
sea creatures escape, helping to keep the lobster population healthy. When the traps are pulled up,
fishermen check the size of each lobster. Only lobsters that are just the right size are kept.
Lobsters have a fascinating life cycle. In their early stages, they exist in a planktonic phase.
They drift in the water column, making them extremely vulnerable to predators and environmental
factors. Lobster hatcheries are designed to help baby lobsters survive this vulnerable stage.
The newly hatched larvae are transferred to the larval room.
These tanks gently swirl the water to imitate ocean currents, helping the larvae stay suspended
like they would in nature. They're fed small live foods like copepods and krill.
After about two weeks, they settle on the bottom and begin to look like tiny adult lobsters.
At this point, they are moved into growing units such as raceways or aqua hives. These systems
help raise many juveniles in a small space. When they're ready, the young lobsters are released
back into the ocean. One of the main locations for receiving lobsters is in Greenhead,
where about 42 fishing boats operate. The crates are placed onto a conveyor that carries them up
into the tank room. Workers unload the crates and place the lobsters into large water tanks,
which can hold up to 90,000 pounds of live lobsters. At the lobster handling station,
lobsters are brought in for grading and sizing. On one end, workers pull lobsters from the tanks
and place them on a conveyor belt. Some are sorted by hand, especially those with one claw or very
small claws. These are known as culls and are separated from the premium catch.
What is next? They're carefully loaded into a high-pressure processing HPP machine. This
powerful machine uses 50,000 psi of pressure to humanely and instantly kill the lobsters.
It's the fastest and most respectful method out there. After HPP, the lobsters are ready
for butchering. Skilled workers take over from here, cleaning and removing the intestinal tract
from each tail to ensure a clean premium product for consumers. Once butchering is done, the tails
go through a salt brine bath to pre-chill and clean them. Then, they move through a nitrogen
tunnel for flash freezing and are glazed for protection. Before any lobster tail is boxed and
shipped, it passes through at least four rounds of quality checks. Claws and bodies are cooked
separately using tailored methods that bring out the best in each part. Once cooled, the meat is
carefully picked by experienced hands. Once it's fully clean, it's vacuum sealed to lock in
freshness. But they don't stop there. We run the sealed meat through the HPP machine once more
to naturally extend shelf life without using any preservatives. This is the packing process for
whole live lobsters for export. For the European market, they're usually packed in 8K boxes,
which hold about eight kilograms of lobster in 15 separate compartments. A frozen gel pack is
added to keep the lobsters cool, and each lobster is placed claw up, tail down. A damp pad goes on top
to keep them moist, just like in their natural habitat. Maine lobster is known for its sweet,
tender meat, and rich flavor. It comes from the cold, clean waters of the North Atlantic,
which gives it a fresh and delicious taste. The claws are juicy, the tails are firm, and every
bite is full of flavor. Whether in a lobster roll or served whole, Maine lobster is a tasty treat
that people love, that people... Did you know a single jumbo squid can grow up to two meters long
and weigh 50 kilograms in just two years? These giants roam the deep ocean in massive schools,
hunting through the night, but tonight they're the ones being hunted.
Join us as we explore the daring world of jumbo squid fishing.
Jumbo squids are true night hunters, traveling in massive schools to hunt more effectively.
But when food gets scarce, they can turn aggressive, even eating each other.
They grow incredibly fast, reaching up to two meters long and weighing as much as 50 kilograms.
Jumbo squid, also known as Humboldt squid, are typically found in deep waters,
mostly off the coasts of South America and Mexico. To catch jumbo squid, fishermen use
large commercial vessels. After locating the massive schools of squid, fishermen then use
specialized jigging machines to drop multiple hooks into the water. These hooks, equipped with
shiny lures, mimic the movements of prey, enticing the squid to strike.
In some regions, smaller fishing boats also join the action. Fishermen manually use large hand
lines, each with multiple barbed hooks. As they feel the weight of a catch, they pull the lines
with practiced skill to haul the squid on board. Jumbo squid fishing can be dangerous.
These powerful creatures thrash violently when caught, and their sharp beaks can cause serious
injury. Additionally, rough seas and unpredictable weather make the job even tougher. Jumbo squid are
drawn to the bright lights. At night, powerful LED lights are turned on to attract them.
After days at sea, the fishing boat finally approaches the harbor,
loaded with freshly caught jumbo squid. Workers begin unloading the squid from the vessel's
cold storage area. The large plastic crates filled with squid are manually moved,
carefully stacked to prevent any damage. The squids may also be lifted using crane nets,
equipped with a built-in weighing system, allowing the crew to measure the catch directly
as it's hoisted from the ship. Workers then load the cleaned squid onto refrigerated trucks
and move them to the processing plant. At the processing plant, freshly caught jumbo
squids undergo a thorough quality inspection to ensure size, texture, and freshness.
At the filleting station, under a continuous stream of clean water from the spray system,
workers skillfully remove the squid's skin, internal organs, and ink sacs. The workers
then manually cut the squid to preserve its texture and aesthetic appeal and separate
the squid into different parts, including the mantle and the tentacles. The tentacles are
briefly blanched to maintain their firmness and improve the texture for further processing.
The larger squid pieces are thoroughly rinsed to remove any residual fluids and maintain
cleanliness. The squid meat is then processed with advanced machinery to create uniform round cuts,
ideal for packaging or culinary use. The round pieces undergo a thorough rinse to ensure any
remaining debris or surface residue is removed. The squid rings are briefly blanched to enhance
their texture and preserve freshness before further processing. The remaining parts are
also processed by cutting them into bite-sized portions, which are then packaged for various
culinary uses. The processed squid is carefully packaged in various formats to suit market
demands, ranging from whole pieces to pre-cut rings and tentacle clusters. The sealed packages
are then moved to cold storage, preserving their freshness
until they are ready to be shipped to markets worldwide.
